Reduced O&M Costs through Better Metallurgy
There are many areas in hydroelectric power plants where better materials of construction can reduce operation and maintenance (O&M) costs. Some of the most nagging problems deal...
Pit Turbines, an Economical Solution for Low Heads
The paper describes the experience with pit turbine design and construction at the 8 MW St. Cloud facility located on the Mississippi River in Minnesota. Major topics in the paper include...
Turnkey Hydropower at St. Cloud
The St. Cloud Hydroelectric Project is located at an existing dam on the Mississippi River in St. Cloud, Minnesota. The project consists of a two-gated spillway and an 8.6-megawatt powerhouse...
Devil Canyon Powerplant Enlargement
This paper presents the design and construction aspects of the enlargement of the existing Devil Canyon Powerplant from 120 MW to 280 MW. Subjects covered include site geology, powerhouse...
Harnessing the Allegheny: Four Low-Head Projects
The navigable portion of the river, extending northeast of Pittsburgh approximately sixty miles, contains eight lock and dam systems under the jurisdiction of the U.S. Army Corps of Engineers...
Siphon Penstock Installations at Hydroelectric Projects: A Survey of Design, Construction and Operating Experience
There can be advantages to using siphon penstocks at small hydro projects, particularly those constructed at existing dams. One problem, however, is a lack of documentation of siphon penstock...
Paradise River, a Challenging Small Hydro Development
The frequent assumption that small hydro developments are simple is not always borne out in practice. A case in point is the Paradise River Development in Newfoundland, Canada. This paper...
Harnessing the Snake: A Construction Viewpoint
The Gem State Hydroelectric Project, five miles south of Idaho Falls, Idaho on the Snake River, consists of a 900-foot-long, 40-foot-high dam; approximately four miles of earthend dikes;...
Foundation Engineering
Current Principles and Practices
The proceedings of the 1989 ASCE Foundation Engineering Congress (entitled Foundation Engineering: Current Principles and Practices) address advances in the state-of-practice and in research...
CAD Speeds Viaduct Replacement
Lack of an available detour around construction of a major viaduct spurred city officials in Reno, Nev. to build a bridge nearby to serve the purpose. Although funded separately, the permanent...
Glitches in Flitch Beam Design
Wiesenfeld proposes a set of design criteria for flitch beams. These beams, in which wood and steel sections are bolted together to act as a single structural unit, are currently covered...
Storing Sediment and Freeing Fish
When Mount St. Helens erupted in May 1980, it sent a river of pyroclastic ash and other debris into Washington's North Fork Toutle River Valley. The resulting debris pile...
Preventive Maintenance: Fixing What Ain't Broke
Municipalities are often caught in the cycle of built-neglect-rebuild. For bridges, the solution is preventive maintenance: keep the bridges clean and painted, and they'll...
Liability Traps to Avoid
This presentation shows several problem situations and the rules of the game as played by the industry and the courts. It makes three basic assumptions. One, the Materials Engineer knows...
Waterpower '89
The 1980's have been characterized as an era of uncertainty for world energy including future demand for energy, fuel prices and availability, regulatory constraints, environmental...
Civil Engineering Guidelines for Planning and Designing Hydroelectric Developments
Avoiding and Resolving Disputes in Underground Construction
Successful Practices and Guidelines
A method of developing cooperative, problem-solving attitudes on projects through a basic risk sharing philosophy between owner and contractor is presented. Special contracting provisions...
Segmental Tunnel Lining Meets `Buy American'
Segmental concrete tunnel lining is the other innovation proven during construction of the Washington Metropolitan Area Transit Authority (`wmata'). Although `wmata's'...
Post-Tensioned Transportation
Post-tensioned highways are relatively new. U.S. 220 near Altoona, Pa. has the first major installation in the country. There two miles of pavement are continuous concrete panels, each...
Seismic Codes:Preparing for the Unknown
Few eastern communities follow seismic codes because few communities view earthquakes as a risk. Although California-sized quakes have hit Charleston, St. Louis, they've done...
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